Back to Companion Planting Guide

Kale Companion Planting

Brassica oleracea var. sabellica

Mustard (Brassicaceae) -- cool season

2 beneficial companions
0 antagonistic relationships

Good Companions for Kale

Sweet AlyssumLobularia maritima
BeneficialPest SuppressionSupported

Alyssum floral resources support hover flies and parasitoid wasps that control cabbage aphid and green peach aphid (Myzus persicae) on kale. Living mulch also suppresses weeds.

Particularly effective for fall kale when aphid pressure peaks. Sow alyssum seed when transplanting kale.

Sources
  • Flower power: promoting pest natural enemies of key brassica pests with sweet alyssum -- HortScience (2013)
YarrowAchillea millefolium
BeneficialPest SuppressionDocumented

Yarrow (Achillea millefolium) flowers attract ladybugs (Coccinellidae), hover flies, lacewings (Chrysoperla spp.), and parasitoid wasps (Cotesia, Diadegma spp.) that control kale aphids and caterpillars.

Plant yarrow as a perennial border near brassica growing areas. Yarrow is drought-tolerant once established.

Sources
  • Biodiversity and pest management in agroecosystems -- Crop Protection (2003)
  • Insectary plantings: practical applications for biological control -- California Agriculture (UC ANR) (2006)